Given the specific heat of water is 4.184 J/gC, how many Joules of heat is absorbed by 50.1 g sample of water if the temperature rises from 20.6 Celcius to 64.5 Celcius when burning a substance below the pop can make in a make-shift calorimeter? Using the previous question as your guide, how much energy per gram of biodiesel is given off in the previous question (J/g)? The sample burned was 1.25 g of biodiesel.
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
Given the specific heat of water is 4.184 J/gC, how many Joules of heat is absorbed by 50.1 g sample of water if the temperature rises from 20.6 Celcius to 64.5 Celcius when burning a substance below the pop can make in a make-shift calorimeter?
Using the previous question as your guide, how much energy per gram of biodiesel is given off in the previous question (J/g)? The sample burned was 1.25 g of biodiesel.
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